在生物启发的毫米结构上粘性毛细管引进,用于持续的液体转移
Ziyang Cheng1,2, Chuxin Li3, Can Gao1,2
1CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
Science advances
|September 8, 2023
概括
毫米结构通过粘性毛细血管引进来增强液体的转移. 这种方法使稳定,大量的液体吸收和受控的排水成为可能,在各种应用中非常有用.
科学领域:
- 流体动力学 流体动力学
- 材料科学是一种材料科学.
- 表面科学是一门科学.
背景情况:
- 液体吸入对于工业液体转移至关重要.
- 固体结构的特性显著影响引进效率.
- 毫米结构在液体携带中的作用尚未得到充分研究.
研究的目的:
- 为了研究毫米结构对液体携带的影响.
- 探索粘度和毛细体的协同效应,以改善液体传输.
- 用结构化表面来证明持续的液体运输.
主要方法:
- 毫米结构表面的制造.
- 液体吸附动态的实验分析.
- 在引进过程中对粘性和毛细血管力的研究.
主要成果:
- 毫米结构显著增强了液体携带.
- 通过控制排水实现了大量的液体吸收.
- 证明了持续的液体转移,在各种粘度中形成均的液滴.
结论:
- 毫米结构表面为高效的液体传输提供了一种新的方法.
- 在这些结构上粘性毛细血管引进使液体运输稳定和可控.
- 潜在的应用范围包括实验室,工业和日常生活场景.
相关概念视频
01:18Rise of Liquid in a Capillary Tube
1.8K
When very thin cylindrical tubes, called capillaries, are dipped in a liquid, the liquid rises or falls in the tube compared to the surrounding liquid. This phenomenon is called capillary action. Capillary action occurs due to the combination of two opposing forces: the cohesive forces of the liquid, which cause it to stick to itself and form a rounded shape, and the adhesive forces between the liquid and the walls of the container, which cause the liquid to be attracted to the container walls.
1.8K
01:19Capillarity in Fluid
246
Capillarity describes the movement of liquid in small spaces without external forces acting on it. The capillarity is driven by surface tension and adhesive interactions between the liquid and surrounding solid surfaces. This effect is often seen in narrow tubes, porous materials, and fine particles.
Surface tension is crucial to capillarity. It results from cohesive forces between liquid molecules at the liquid-air boundary, forming a skin that resists external forces. When the capillary tube...
Surface tension is crucial to capillarity. It results from cohesive forces between liquid molecules at the liquid-air boundary, forming a skin that resists external forces. When the capillary tube...
246
02:57Surface Tension, Capillary Action, and Viscosity
28.0K
Surface Tension
The various IMFs between identical molecules of a substance are examples of cohesive forces. The molecules within a liquid are surrounded by other molecules and are attracted equally in all directions by the cohesive forces within the liquid. However, the molecules on the surface of a liquid are attracted only by about one-half as many molecules. Because of the unbalanced molecular attractions on the surface molecules, liquids contract to form a shape that minimizes the number...
The various IMFs between identical molecules of a substance are examples of cohesive forces. The molecules within a liquid are surrounded by other molecules and are attracted equally in all directions by the cohesive forces within the liquid. However, the molecules on the surface of a liquid are attracted only by about one-half as many molecules. Because of the unbalanced molecular attractions on the surface molecules, liquids contract to form a shape that minimizes the number...
28.0K